The Simpsons special sees Patty and Selma in London 2012 Olympics

Springfield’s finest – well, Marge’s sisters Patty and Selma – are set to compete in a rowing event at the London 2012 Olympics in an upcoming special episode of The Simpsons.

Marg’s wayward sisters Patty and Selma take on the Winklevoss twins at the London 2012 Olympic Games in an upcoming episode of The Simpsons (Picture: Fox)

The special will see Marge’s chain-smoking siblings making their way down the Thames after landing themselves a spot in the Games.

The wayward siblings row past Big Ben, the Houses of Parliament and under Westminster Bridge hot on the tail of their competitors – American twins Cameron and Tyler Winklevoss, who competed at the 2008 Beijing Olympics.

A source told The Sun: ‘A rowing event at the 2012 Games transforms into a sibling-off when the dapper duo find themselves up against chain-smoking Patty and Selma.’

The special will also touch on Facebook movie The Social Network.

Actor Arnie Hammer returns to his role as the Winklevoss brothers, who famously sued Mark Zuckerberg for £90million claiming he stole their ConnectU idea to create his online behemoth.

The episode, entitled The D’oh-cial Network, airs on Sky1 at 6pm on Sunday.